25-30 ish on a 8 mile commute 70% town / 30% DC. Moderate traffic in town. If I'm using GTI power to come off roundabouts and get up to speed its 25, if I'm using sensible power its closer to 30.
On a long steady cruise at or just above NSL 37-38 is possible, even saw 40 once, but road conditions meant I was stuck to abut 50mph for quite a distance...